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linux/drivers/ata
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Alexander Gordeev 227dfb4dbf AHCI: Do not read HOST_IRQ_STAT reg in multi-MSI mode 
As described in AHCI v1.0 specification chapter 10.6.2.2
"Multiple MSI Based Messages" generation of interrupts
is not controlled through the HOST_IRQ_STAT register.

Considering MMIO access is expensive remove unnecessary
reading and writing of HOST_IRQ_STAT register.

Further, serializing access to the host data is no longer
needed and the interrupt service routine can avoid competing
on the host lock.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Suggested-by: "Jiang, Dave" <dave.jiang@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: "Jiang, Dave" <dave.jiang@intel.com>
Cc: linux-ide@vger.kernel.org
2014-10-06 11:43:36 -04:00
..
acard-ahci.c
AHCI: Move host activation code into ahci_host_activate()
2014-10-06 11:43:35 -04:00
ahci_da850.c
ata: libahci_platform: move port_map parameters into the AHCI structure
2014-07-30 15:39:46 -04:00
ahci_imx.c
ata: libahci_platform: move port_map parameters into the AHCI structure
2014-07-30 15:39:46 -04:00
ahci_mvebu.c
ata: libahci_platform: move port_map parameters into the AHCI structure
2014-07-30 15:39:46 -04:00
ahci_platform.c
ata: remove deprecated struct ahci_platform_data
2014-08-16 08:35:34 -04:00
ahci_st.c
ata: libahci_platform: move port_map parameters into the AHCI structure
2014-07-30 15:39:46 -04:00
ahci_sunxi.c
ata: libahci_platform: move port_map parameters into the AHCI structure
2014-07-30 15:39:46 -04:00
ahci_tegra.c
ata: libahci_platform: move port_map parameters into the AHCI structure
2014-07-30 15:39:46 -04:00
ahci_xgene.c
ahci_xgene: Fix the error print invalid resource for APM X-Gene SoC AHCI SATA Host Controller driver.
2014-09-23 10:07:11 -04:00
ahci.c
AHCI: Move host activation code into ahci_host_activate()
2014-10-06 11:43:35 -04:00
ahci.h
AHCI: Do not read HOST_IRQ_STAT reg in multi-MSI mode
2014-10-06 11:43:36 -04:00
ata_generic.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
ata_piix.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
Kconfig
libata: Use glob_match from lib/glob.c
2014-08-06 18:01:25 -07:00
libahci_platform.c
AHCI: Move host activation code into ahci_host_activate()
2014-10-06 11:43:35 -04:00
libahci.c
AHCI: Do not read HOST_IRQ_STAT reg in multi-MSI mode
2014-10-06 11:43:36 -04:00
libata-acpi.c
ACPI and power management updates for 3.15-rc1
2014-04-01 12:48:54 -07:00
libata-core.c
libata: change ata_<foo>_printk routines to return void
2014-09-23 10:02:31 -04:00
libata-eh.c
libata: EH should handle AMNF error condition as a media error
2014-07-15 11:13:57 -04:00
libata-pmp.c
ata: enable quirk from jmicron JMB350 for JMB394
2014-01-31 07:05:44 -05:00
libata-scsi.c
scsi: use 64-bit LUNs
2014-07-17 22:07:37 +02:00
libata-sff.c
libata-sff: Fix controllers with no ctl port
2014-09-28 11:19:12 -04:00
libata-transport.c
libata: Fix display of sata speed
2013-10-27 07:43:25 -04:00
libata-transport.h
[libata] Add ATA transport class
2010-10-21 20:21:03 -04:00
libata-zpodd.c
libata: zpodd: eliminate odd_can_poweroff
2014-03-14 11:23:47 -04:00
libata.h
scsi: use 64-bit LUNs
2014-07-17 22:07:37 +02:00
Makefile
ata: Add support for the Tegra124 SATA controller
2014-07-18 17:52:33 -04:00
pata_acpi.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ali.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_amd.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_arasan_cf.c
pata_arasan_cf: fix ata_host_activate() failure handling
2014-04-14 13:50:03 -04:00
pata_artop.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_at32.c
ata: use dev_get_platdata()
2013-07-30 08:59:24 -04:00
pata_at91.c
pata_at91: fix ata_host_activate() failure handling
2014-04-02 13:17:31 -04:00
pata_atiixp.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_atp867x.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_bf54x.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cmd64x.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cmd640.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cs5520.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cs5530.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cs5535.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cs5536.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_cypress.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_efar.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ep93xx.c
drivers/ata/pata_ep93xx.c: use signed int type for result of platform_get_irq()
2014-07-17 08:36:13 -04:00
pata_hpt3x2n.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
pata_hpt3x3.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_hpt37x.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
pata_hpt366.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_icside.c
Drivers: ata: remove __dev* attributes.
2013-01-03 15:57:03 -08:00
pata_imx.c
ata: pata_imx: Use the SIMPLE_DEV_PM_OPS() macro
2014-10-04 22:06:57 -04:00
pata_isapnp.c
pata_isapnp: Don't use invalid I/O ports
2013-10-07 15:17:32 -04:00
pata_it821x.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_it8213.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ixp4xx_cf.c
DMA-API: others: use dma_set_coherent_mask()
2013-10-31 14:49:07 +00:00
pata_jmicron.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_legacy.c
pata_legacy: Remove dead code
2014-03-11 08:30:53 -04:00
pata_macio.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_marvell.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_mpc52xx.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_mpiix.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_netcell.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ninja32.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ns87410.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_ns87415.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_octeon_cf.c
pata_octeon_cf: use devm_kzalloc() to allocate cf_port
2014-04-14 13:33:28 -04:00
pata_of_platform.c
pata_platform: Remove useless irq_flags field
2014-08-23 13:05:08 -04:00
pata_oldpiix.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_opti.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_optidma.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_palmld.c
Drivers: ata: remove __dev* attributes.
2013-01-03 15:57:03 -08:00
pata_pcmcia.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
pata_pdc202xx_old.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_pdc2027x.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_piccolo.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_platform.c
pata_platform: Remove useless irq_flags field
2014-08-23 13:05:08 -04:00
pata_pxa.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
pata_radisys.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_rb532_cf.c
Drivers: ata: remove __dev* attributes.
2013-01-03 15:57:03 -08:00
pata_rdc.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_rz1000.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_samsung_cf.c
ata: pata_samsung_cf: removes s5pc100 related ata codes
2014-06-30 10:48:08 -04:00
pata_sc1200.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_scc.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_sch.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_serverworks.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_sil680.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_sis.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_sl82c105.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_triflex.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pata_via.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
pdc_adma.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
sata_dwc_460ex.c
ata: remove superfluous casts
2014-03-26 12:36:53 -04:00
sata_fsl.c
ata: Use dma_zalloc_coherent
2014-06-17 10:23:26 -04:00
sata_highbank.c
AHCI: Move host activation code into ahci_host_activate()
2014-10-06 11:43:35 -04:00
sata_inic162x.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
sata_mv.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
sata_nv.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
sata_promise.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
sata_promise.h
libata annotations and fixes
2008-01-23 05:24:15 -05:00
sata_qstor.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
sata_rcar.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
sata_sil24.c
sata_sil24: Identify which card suffered IRQ status error
2014-07-22 10:08:31 -04:00
sata_sil.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
sata_sis.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
sata_svw.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
sata_sx4.c
ata: remove superfluous casts
2014-03-26 12:36:53 -04:00
sata_uli.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
sata_via.c
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
2014-05-09 22:37:49 -04:00
sata_vsc.c
ata: delete non-required instances of include <linux/init.h>
2014-02-13 16:40:56 -05:00
sis.h
libata: PATA-mode fixes for sis_sata
2007-07-02 10:17:42 -04:00